CN104169175B

CN104169175B - The method for disinfection of preform and device

Info

Publication number: CN104169175B
Application number: CN201380014051.3A
Authority: CN
Inventors: 宫原美启; 土屋博隆; 西田吉男
Original assignee: Dai Nippon Printing Co Ltd
Current assignee: Dai Nippon Printing Co Ltd
Priority date: 2012-03-14
Filing date: 2013-03-13
Publication date: 2016-05-11
Anticipated expiration: 2033-03-13
Also published as: WO2013137321A1; US10548999B2; US20150037205A1; US20200114025A1; EP2826716A4; CN104169175A; EP2826716A1

Abstract

The invention provides a kind of method for disinfection of preform, simple and easy and promptly preform is carried out to sterilization. The multiple preforms (1) that are formed as bottom tube-like are dropped into conveyer belt (4) and go up and be set to irregular accumbency state, these preforms are passed through in chamber (5) together with conveyer belt, in chamber, traverse the direction spraying hydrogen peroxide of conveyer belt from conveyer belt two side direction, make this hydrogen peroxide having sprayed be attached to the surfaces externally and internally of the preform (1) on conveyer belt.

Description

The method for disinfection of preform and device

Technical field

The present invention relates to the preform for making the containers such as bottle to carry out method and the device of sterilization.

Background technology

At present, utilizing hydrogen peroxide to carry out sterilization to the bottle of PET (PETG) systemTime, by indoor bottle introduction chamber, in chamber, spray hydrogen peroxide, and import air stream in chamber. ByThis, even have the bottle of complicated shape, also can make the mist of hydrogen peroxide be attached to equably bottleSurface, to carry out sterilization equably (for example,, with reference to patent documentation 1 to bottle surface. ).

The preform stage of also attempting before bottle is shaped in addition, is carried out sterilization. , make preformOral area with just right to the nozzle of vertical lower opening, from medicaments such as nozzle spraying hydrogen peroxide, then,Preform is imported in heating furnace, preform is heated to blow molding temperature, and improve sterilization effectReally, then utilize shaping dies clamping blow molding for bottle is (for example,, with reference to patent documentation 2. ).

In addition, the in the situation that of also attempting carrying out sterilization in the preform stage, by each hydrogen peroxide that drippedIn multiple preforms of solution pack into the container, seal, in the time carrying this container of keeping, utilizeThe steam of the hydrogen peroxide having gasified in container carries out sterilization to the surfaces externally and internally of preform. At collectionThe position of delivering to destination of vanning, the preform taking out from container is positioned at the position of delivering to destinationThe forming machine of putting is configured as the bottle of germ-free condition (for example,, with reference to patent documentation 3. ).

In addition, often do not wish to use the bactericide such as hydrogen peroxide in the sterilization of preform. As notThe method that uses this bactericide and preform is carried out to sterilization, motion steam to being blown into water in preformGas also maintains the stipulated time by temperature more than glass transition point temperature, thus, and to entering in preformRow sterilization, the method that is then blown into immediately air and removes the condensed water of steam is (for example,, with reference to patent literary compositionOffer 4. ).

Prior art document

Patent documentation

Patent documentation 1:(Japan) Unexamined Patent 5-65148 communique

Patent documentation 2: special table 2001-510104 communique

Patent documentation 3:(Japan) JP 2000-326935 communique

Patent documentation 4:(Japan) JP 2007-111886 communique

Summary of the invention

Invent problem to be solved

The method that the mist of existing use hydrogen peroxide carries out sterilization to bottle needs the mist of miniaturization hydrogen peroxide,Therefore, must use the mist maker of high price, therefore, there is the problem that causes cost to increase.

In addition, to the method for the medicaments such as preform spraying hydrogen peroxide need to make preform with upright (justVertical) state proper alignment moves, and need to import immediately in heating furnace adhering to after medicament. Therefore,Have disinfection system complicated, maximize and cause cost increase problem.

In addition, the preform hydrogen peroxide solution that drips is carried out, in the method for sterilization, need to making preformTransport to proper alignment, and be difficult to the preform a large amount of with high speed processing. In addition, hydrogen peroxide solution withQuantitatively drip in each preform, therefore, have need to metering hydrogen peroxide solution in ejectionThe shortcoming of the device of high price.

In addition,, can remove carrying out the method for sterilization in preform according to the existing steam that utilizesThe problem of residual bactericide, if but the condensed water of steam remain in preform, in container, becomeWhen shape, become albefaction etc. and produce reason, therefore, have and must be arranged on the operation of eliminating condensed water after sterilizationProblem. In addition, if steam covers the oral area of preform for a long time, oral area is easily deformable, soWhen backward mouthpiece cover upper cover, become the reason of damaging sealing. In the sterilization that only utilizes steam to carry out,There is bacterium and be easy to remaining problem.

It is problem that the present invention will remove this problem develop.

For solving the technical scheme of problem

In order to solve described problem, the present invention adopts such structure below.

, the first aspect of invention adopts a kind of method for disinfection of preform, will be formed as bottom tube-likeMultiple preforms (1) drop into conveyer belts (4) go up and be set to irregular accumbency state, make these preformationsParison (1) by chamber (5), traverses from conveyer belt (4) two side direction together with conveyer belt (4) in chamber (5)The direction spraying hydrogen peroxide of conveyer belt (4), makes this hydrogen peroxide having sprayed be attached to the preformation on conveyer belt (4)The surfaces externally and internally of parison (1).

A method for disinfection for preform, throws in the multiple preforms that are formed as bottom tube-like defeatedSend and bring and be set to irregular accumbency state, make these preforms pass through chamber together with conveyer beltIn, in chamber, traverse the direction spraying hydrogen peroxide of conveyer belt from conveyer belt two side direction, this has been sprayedHydrogen peroxide is attached to the surfaces externally and internally of the preform on conveyer belt, then, and to comprising preform oral areaWhole surface in the atmospheric pressure of 200 DEG C～500 DEG C of spraying water-based pressure ratios of making of at least inner surface highSuperheated vapor.

As the third aspect or second aspect are recorded, the sterilization side of the preform of recording in first aspectIn method, described hydrogen peroxide can utilize and use the two-fluid spraying of forced air to carry out atomization.

As fourth aspect is recorded, the preform that any one is recorded in first aspect～third aspectIn method for disinfection, the concentration of described hydrogen peroxide also can be set to 20%～35%.

As recorded the 5th aspect, the sterilization side of the preform of recording in the third aspect or fourth aspectIn method, also can in the mist of hydrogen peroxide, mix the hot-air that adds of 40 DEG C～150 DEG C.

As recorded the 6th aspect, aspect first aspect～five in any one preform recordedIn method for disinfection, also can before the sterilization that starts preform (1), utilize in advance hydrogen peroxide sprayer pairDescribed chamber carries out sterilization in (5).

In addition, the 7th aspect of invention adopts a kind of sterilizing unit, possesses: will be formed as bottom tube-likePreform (1) loads the conveyer belt (4) that transports, is arranged at moving horizontally of this conveyer belt (4) with accumbency stateThe chamber (5) of portion, the direction spraying of traversing conveyer belt (4) in this chamber (5) from described conveyer belt (4) two side directionHydrogen peroxide and make hydrogen peroxide be attached to the spray nozzle of the surfaces externally and internally of the preform (1) on conveyer belt (4)(10)。

In addition, the eight aspect of invention adopts a kind of preform sterilizing unit, possesses: will be formed asThe preform (1) of bottom tube-like loads the conveyer belt (4) that transports, is arranged at this conveyer belt (4) with accumbency stateThe portion that moves horizontally chamber (5), in this chamber (5), traverse conveyer belt (4) from described conveyer belt (4) two side directionDirection spraying hydrogen peroxide (M) and make hydrogen peroxide (M) be attached to preform (1) on conveyer belt (4) inThe spray nozzle (10) of outer surface, the preform that reception is sent outside described chamber (5) by described conveyer belt (4)(1), in moving with erectility, in the whole surface of the oral area that comprises preform (1) (1a)The high superheated vapor (S) of atmospheric pressure of 200 DEG C～500 DEG C of spraying water-based pressure ratios of making of at least inner surfaceSuperheated vapor feedway.

The 9th aspect of invention adopts a kind of method for disinfection of preform, will be formed as the many of bottom tube-likeIndividual preform (1) drops into conveyer belt (4) and goes up and be set to irregular accumbency state, and makes these preformationsParison (1) utilizes conveyer belt (4) by the first chamber (5) time, from conveyer belt (4) both sides to preform(1) spraying-and-heating air (H) and preheating preform (1) is then utilizing conveyer belt (4) to make preform (1)Interior by the second chamber (6) time, utilize and mixed mistake from conveyer belt (4) two side direction preforms (1) sprayingsThe superheated vapor (S) that the water of hydrogen oxide is made and preform (1) is carried out to sterilization.

Recorded as the tenth aspect, in the method for disinfection of the preform of recording aspect the 9th, also canWith by the described spraying that adds hot-air (H), preform (1) surface is preheated to 40 DEG C～70 DEG C.

Record on the one hand as the tenth, in the method for disinfection of the preform of recording aspect the 9th, mistakeThe water that heat steam (S) also can mix hydrogen peroxide by dielectric heating produces.

In addition, the 12 aspect of invention adopts a kind of preform sterilizing unit, possesses: with accumbency shapeState is loaded and is transported the conveyer belt (4) of the preform (1) that is formed as bottom tube-like, is in series arranged at this conveyingBand (4) the portion that moves horizontally first and second chamber (5,6), in the first chamber (5) from conveyer belt (4) twoThe nozzle for preheating (11) of side direction preform (1) spraying-and-heating air (H) and preheating preform (1),In two chambers (6), utilize the water system of having mixed hydrogen peroxide from conveyer belt (4) two side direction preform (1) sprayingsThe superheated vapor (S) becoming and the nozzle for sterilization (20) that preform (1) carried out to sterilization.

The tenth three aspects: of invention adopts a kind of method for disinfection of preform, will be formed as bottom tube-likeMultiple preforms (1) drop into conveyer belt (4) and go up and be set to irregular accumbency state, make these preformationsParison (1) utilizes conveyer belt (4) by the first chamber (5) time, from conveyer belt (4) both sides to preform(1) spraying-and-heating air (H) and preheating preform (1) is then utilizing conveyer belt (4) to make preform (1)Interior by the second chamber (6) time, from conveyer belt (4) two side direction preforms (1) spraying superheated vapors (S)And preform (1) is carried out to sterilization.

As recorded the 14 aspect, in the method for disinfection of the preform of recording at the tenth three aspects:,Also can, by the described spraying that adds hot-air (H), preform (1) surface be preheated to 40 DEG C～70 DEG C.

As recorded the 15 aspect, in the method for disinfection of the preform of recording at the tenth three aspects:,Superheated vapor (S) also can produce by dielectric heating water.

In addition, the 16 aspect of invention adopts a kind of preform sterilizing unit, possesses: with accumbency shapeState is loaded and is transported the conveyer belt (4) of the preform (1) that is formed as bottom tube-like, is arranged at this conveying abreastBand (4) the portion that moves horizontally first and second chamber (5,6), in the first chamber (5) from conveyer belt (4) twoThe nozzle for preheating (11) of side direction preform (1) spraying-and-heating air (H) and preheating preform (1),Two chambers (6) are interior from conveyer belt (4) two side direction preforms (1) spraying superheated vapors (S) and to preform (1)Carry out the nozzle for sterilization (20) of sterilization.

Invention effect

According to the first aspect of invention, a kind of method for disinfection of preform is provided, will be formed as end cylinderMultiple preforms (1) of shape drop into conveyer belt (4) and go up and be set to irregular accumbency state, make these pre-Become parison (1) to pass through with conveyer belt (4) together with in chamber (5), in chamber (5) from conveyer belt (4) two side direction horizontal strokesPass through the direction spraying hydrogen peroxide of conveyer belt (4), make this hydrogen peroxide having sprayed be attached to pre-on conveyer belt (4)Become the surfaces externally and internally of parison (1), therefore, can be by the preform giving off from preform forming machine (1)Stopped by conveyer belt (4), and import together with conveyer belt (4) at the upper state with maintenance accumbency of conveyer belt (4)In chamber (5). And, owing to traversing the direction spray of conveyer belt (4) from conveyer belt (4) two side direction in chamber (5)Be coated with hydrogen peroxide, therefore, the mist of hydrogen peroxide is attached to preform (1) outer surface on conveyer belt (4). Now,Preform (1) can roll because vibration waits conveyer belt (4) is upper, therefore, hydrogen peroxide do not omit andBe attached to equably the outer surface of preform (1). In addition, meanwhile, the mist of hydrogen peroxide is also from becoming horizontalThe oral area of preform (1) flows in preform (1), is also attached to equably preform (1) inner surface.Thus, the whole surface of preform (1) is by the appropriate sterilization of hydrogen peroxide. In addition, adopt described the present inventionThe result of method, do not need the hydrogen peroxide of at present such preform proper alignment device or high price fixedAmount blowoff, just can reliably and at an easy rate carry out sterilization to a large amount of preforms.

According to the second aspect of invention, a kind of method for disinfection of preform is provided, will be formed as end cylinderMultiple preforms (1) of shape drop into conveyer belt (4) and go up and be set to irregular accumbency state, make these pre-Become parison (1) to pass through with conveyer belt (4) together with in chamber (5), in chamber (5) from conveyer belt (4) two side direction horizontal strokesPass through the direction spraying hydrogen peroxide of conveyer belt (4), make this hydrogen peroxide having sprayed be attached to pre-on conveyer belt (4)Become the surfaces externally and internally of parison (1), then, in the whole surface of the oral area that comprises preform (1) (1a)At least high superheated vapor (S) of atmospheric pressure of 200 DEG C～500 DEG C of spraying water-based pressure ratios of making of inner surface,Therefore, the preform giving off (1) can be stopped by conveyer belt (4) from preform forming machine, andThe in the situation that of being set to accumbency state on conveyer belt (4), import in chamber (5) together with conveyer belt (4). AndAnd, owing to traversing the direction spraying hydrogen peroxide of conveyer belt (4) from conveyer belt (4) two side direction in chamber (5), because ofThis, the mist (M) of hydrogen peroxide is attached to preform (1) outer surface on conveyer belt (4). Now, preformedBase (1) above can roll because vibration waits at conveyer belt (4), and therefore, hydrogen peroxide is attached to preformation equablyThe outer surface of parison (1). In addition, meanwhile, the mist of hydrogen peroxide (M) is also from becoming horizontal preform (1)Oral area flows in preform (1), is also attached to equably preform (1) inner surface. Thus, preformedThe whole surface of base (1) is by the appropriate sterilization of hydrogen peroxide. Then, by the preform of this hydrogen peroxide sterilization(1) after sometimes taking care of, transport in packaging, untie and pack and deliver to blow-moulding machine etc., but by supplying withDuring to blow-moulding machine etc., spray superheated vapor (S), after sterilization more reliably, utilize blow-moulding machineForm container. In addition, be directly supplied to blow-moulding machine etc. at the preform by hydrogen peroxide sterilization (1)Situation under, further killed by superheated vapor (S) in the stage of transferring to blow-moulding machine etc. from conveyer belt (4)Bacterium, therefore, the preform of sterilization (1) utilizes blow-moulding machine to form container (12) reliably.

In addition, adopt the result of described method of the present invention, do not need at present such preform neatThe quantitative blowoff of hydrogen peroxide of collating unit or high price, just can be reliably and at an easy rate to a large amount of preformedBase carries out sterilization.

According to invention the 9th aspect, can by the preform giving off from preform forming machine (1) byConveyer belt (4) stops, and utilizes conveyer belt (4) be set to accumbency state on conveyer belt (4) in the situation thatImport in the first and second chambers (5,6). And, due in the second chamber (6) from conveyer belt (4) both sidesTo preform (1) spraying superheated vapor (S), therefore, the outer surface quilt of the preform (1) on conveyer belt (4)Appropriate sterilization. In addition, now, preform (1) above can roll because vibration waits at conveyer belt (4),Therefore, the outer surface of preform (1) is not omitted and be attached to equably to superheated vapor. In addition, meanwhile,Superheated vapor (S) is also from becoming the oral area (1a) of horizontal preform (1) to flow in preform (1), therefore,Preform (1) inner surface is also by appropriate sterilization. Thus, the whole surface of preform (1) is by superheated vapor(S) sterilization equably.

In addition, superheated vapor (S) utilization has been mixed the water manufacture of hydrogen peroxide, therefore, is not only attached to pre-Become the general bacterium on parison 1 surface, mould, saccharomycete by sterilization, and brood cell bacterium is also by sterilization.

In addition, before the sterilization of being undertaken by the spraying of superheated vapor (S), in the first chamber (5), pass throughThe spraying that adds hot-air (H) is carried out preheating to preform (1), therefore, even if reduce the temperature of superheated vapor (S)Degree and use amount, also can obtain the bactericidal effect of wishing.

According to the tenth three aspects: of invention, can be by the preform giving off from preform forming machine (1)Stopped by conveyer belt (4), and utilize conveyer belt (4) be set to accumbency state on conveyer belt (4) in the situation thatImport in the first and second chambers (5,6). And, due in the second chamber (6) from conveyer belt (4) both sidesTo preform (1) spraying superheated vapor (S), therefore, the outer surface quilt of the preform (1) on conveyer belt (4)Appropriate sterilization. In addition, now, preform (1) above can roll because vibration waits at conveyer belt (4),Therefore, the outer surface of preform (1) is not omitted and be attached to equably to superheated vapor. In addition, meanwhile,Superheated vapor (S) is also from becoming the oral area (1a) of horizontal preform (1) to flow in preform (1), therefore,Preform (1) inner surface is also by appropriate sterilization. Thus, the whole surface of preform (1) is by superheated vapor(S) sterilization equably.

In addition, before the sterilization of being undertaken by the spraying of superheated vapor (S), in the first chamber (5), pass throughThe spraying that adds hot-air (H) is carried out preheating to preform (1), therefore, even if reduce the temperature of superheated vapor (S)Degree or use amount, also can obtain the bactericidal effect of wishing.

Brief description of the drawings

Fig. 1 represents an example of preform that can sterilization by method for disinfection of the present invention, (A) for overlookingFigure, (B) is front view;

Fig. 2 represents that the device of the method for implementing to utilize hydrogen peroxide preform to be carried out to sterilization is generalPartial cut-out top view slightly;

Fig. 3 is the vertical sectional view that represents said apparatus summary;

Fig. 4 utilizes superheated vapor preform to be carried out to the key diagram of the method for sterilization;

Fig. 5 is the key diagram from the superheated vapor sterilization process of preform to blow molding operation;

Fig. 6 is the key diagram to cap pressing process from blow molding;

Fig. 7 carries out after the preform to utilizing hydrogen peroxide sterilization further utilizes superheated vapor sterilizationThe approximate vertical view of the device of blow molding filling beverage;

Fig. 8 is the partial cut that represents the device summary of the method for disinfection for implementing preform of the present inventionMouth top view;

Fig. 9 is the vertical sectional view that represents said apparatus summary;

Figure 10 (A) is the piece figure that adds hot-air generating unit, is (B) the piece figure of superheated vapor generating unit.

Detailed description of the invention

Below, to describing for implementing mode of the present invention.

< embodiment 1 >

Preform PET as sterilization object of the present invention, what be formed as testing tubulose has a bottom tube-like body.Then, preform is configured as the bottle (with reference to Fig. 6 (D)) of desirable shape, but as Fig. 1 (A) (B) as shown in,In preform 1, its be shaped give at first be shaped after the identical oral area 1a of bottle. At this mouthOn the outer peripheral face of the 1a of portion, form external screw thread 2 with the shaping of preform 1 simultaneously. This pin thread 2 canWith the internal screw-thread screw of lid (not shown) that covers bottle 1a. Below pin thread 2, be formed on itThe support ring 3 of utilizing when filling beverage etc. in backward bottle.

This preform 1 is carried out to the device of sterilization as Fig. 2 and Fig. 3 formation.

In Fig. 2 and Fig. 3, symbol 4 representative ring belt conveyors. In being represented by arrow of this conveyer belt 4The upstream side configuration preform forming machine (not shown) of moving direction. Give off from preform forming machineThe preform 1 that completes of shaping by the use at the not shown hopper of the upstream portion of conveyer belt 4 etc.Stop. As shown in Figure 2, the preform 1 of shaping becomes accumbency state with irregular direction and fillsBe loaded on conveyer belt 4.

The pars intermedia of conveyer belt 4 can flatly move, and at this pars intermedia, covers chamber 5 hood-likely.

Chamber 5 has: with the two side 6 that configures from the mode of sandwich conveyer belt 4, be disposed at both sidesThe front and rear wall 7,8 of the front and back end of wall 6, cover the roof 9 of the upside of two side 6 and front and rear wall 7,8.

The direction of traversing conveyer belt 4 from lateral edges one side direction of conveyer belt 4 is installed respectively on two side 6The spray nozzle 10 of spraying hydrogen peroxide. Spray nozzle 10 also can be mounted to two side 6 one by one, but preferably twoSidewall 6 is multiple towards the each arrangement of moving direction of conveyer belt 4.

In addition, as spray nozzle 10, preferably adopt two-fluid rose, with from one of each nozzle 10Stream is supplied with hydrogen peroxide, and supplies with forced air from another stream.

When forced air is in two-fluid rose 10 during with flow at high speed, it is empty that hydrogen peroxide enters pressurizationGas and become mist, and be ejected in chamber 5 from the front end of each nozzle 10. The spraying of this hydrogen peroxide producesMist is attached to the surface of the preform 1 on conveyer belt 4.

Also can in this mist, mix 40 DEG C～150 DEG C add hot-air and preform 1 is sprayed.

In Fig. 2 and Fig. 3, symbol 46 represents to spray the nozzle that this adds hot-air. From adding of this nozzle sprayingHot-air mixes with the hydrogen peroxide that utilizes above-mentioned two-fluid rose 10 atomizations, and mist is being heatedTime flow to preform. By the heating of this mist, bactericidal effect improves.

In addition, the mist of hydrogen peroxide traverses the direction spray of conveyer belt 4 in chamber 5 from 4 liang of side direction of conveyer beltGo out, preform 1 can roll because vibration waits on conveyer belt 4, and therefore, hydrogen peroxide is not lostLeak and be attached to equably the outer surface of preform 1. Meanwhile, the mist of hydrogen peroxide is also from becoming horizontal pre-Become the oral area 1a of parison 1 to flow in preform 1, and be attached to equably the inner surface of preform 1.In addition, the mist of the hydrogen peroxide spraying from two-fluid rose 10 is full of and circulates in chamber 5, because ofThis, along with this mobile mist is also attached to the surface of preform 1. Thus, preform 1 is wholeSurface is by the appropriate sterilization of hydrogen peroxide.

The concentration of the hydrogen peroxide that the sterilization of above-mentioned preform 1 is used is preferably 20%～35%. If denseSpend littlely than 20%, be easy to produce the incomplete problems of sterilization such as remaining brood cell bacterium, in addition, if than 35% is large, and a large amount of hydrogen peroxide is easy to residue in preform.

In addition, preferably in above-mentioned mist, mix the hot-air that adds of 40 DEG C～150 DEG C. If the temperature of mist is than 40 DEG CLow, be easy to produce sterilization bad, if higher than 150 DEG C, have and in preform, be easy to produce distortionProblem.

On the front and rear wall 7,8 of above-mentioned chamber 5, form opening 7a, 8a, make conveyer belt 4 and be loaded into defeatedSend with the preform 1 on 4 and can pass through. In addition, exhaust passage 11 links with roof 9. To above-mentionedThe mist of the hydrogen peroxide of chamber 5 interior ejections is attracted to exhaust passage 11 by the driving of not shown pressure fanIn, and flow to retracting device. Thus, prevent that the mist of hydrogen peroxide is from opening 7a, the 8a of front and rear wall 7,8Deng flowing out to outside chamber 5.

The ratio chamber 5 of said conveyer belt 4 more downstream stretches to tuns such as not shown containers.The preform 1 that is attached with the mist of hydrogen peroxide in above-mentioned chamber 5 utilizes conveyer belt 4 to transport to tunSend, and be fed in tun. Tun carries out close after the preform 1 that drops into ormal weightClose keeping, and be transported to the factory that is configured as bottle. Even during this keeping, transporting, preform 1Also the hydrogen peroxide being closed in together with preform 1 in tun carries out sterilization.

In addition, in above-mentioned chamber 5 feelings that more downstream is connected with blow-moulding machine of ratio of said conveyer belt 4Under condition, the preform 1 of sterilization carries out blow molding immediately, and is configured as the containers such as bottle. In addition,In the situation that blow-moulding machine is connected with content-filled machines such as beverages, close to filling in the containers such as bottleThe contents such as envelope beverage, and discharge as aseptic filling and packing product.

Then, with the effect that above-mentioned preform sterilizing unit is described together with the method for disinfection of preform.

Before the sterilization processing of beginning preform 1, in advance from spray nozzle 10 to the interior spraying dioxygen of chamber 5Water, to carrying out sterilization processing in chamber 5.

By the operation of preform forming machine, the preform 1 of shaping is thrown at mobile conveyer belt 4Upstream side. The preform 1 giving off from preform forming machine stops at the upstream portion of conveyer belt 4Live, as shown in Figure 2, on conveyer belt 4, become irregular accumbency state.

Preform 1 on conveyer belt 4 enters in chamber 5 together with conveyer belt 4, and utilizes spray nozzle10 spraying hydrogen peroxide.

As required, in the mist of the hydrogen peroxide of this spraying, mix the hot-air that adds spraying from nozzle 46.

The mist of hydrogen peroxide traverses the direction ejection of conveyer belt 4 in chamber 5 from 4 liang of side direction of conveyer belt, anotherOutward, preform 1 can roll because vibration waits on conveyer belt 4, and therefore, hydrogen peroxide is not lostLeak and be attached to equably the outer surface of preform 1.

The mist of hydrogen peroxide also flows in preform 1 from the oral area 1a that becomes horizontal preform 1, and allBe attached to the inner surface of preform 1 evenly.

The mist of the hydrogen peroxide spraying from spray nozzle 10 is full of circulation in chamber 5, and therefore, this mist is flowingTime, be attached to equably the surface of preform 1. Thus, the whole surperficial quilt of preform 1Hydrogen peroxide is sterilization equably.

Preform 1, in by the mist of spraying hydrogen peroxide, passes through chamber 5 together with conveyer belt 4, andDrop in the tuns such as container. Or be not packaged in container etc., and be transported to blow-moulding machine,Filling machine, and become aseptic packaging body and discharge.

In addition, the present invention is not limited to above-mentioned embodiment, can implement in every way.

Embodiment 1

The hydrogen peroxide that is 35% by concentration and forced air are supplied to and in two-fluid sprayer, generate hydrogen peroxideMist mixes the hot-air that adds of 60 DEG C in the mist of this generation, and utilizes nozzle to spray hydrogen peroxide in chamberMist. It is that 1000mm, length are 1500mm, bottomless for 200mm highly that chamber is set to widthBox, and be arranged at the assigned address on the conveyer belt that width is 600mm. On conveyer belt with 860/ minute feeding capacity 500mL bottle preform, conveyer belt turns round with the speed of 0.2m/ second.Now, the adhesion amount of the hydrogen peroxide of every 1 preform is about 50mg.

Evaluate sterilizing power taking Bacillussubtilis as Bacteria Indicators, result, the inner surface of preform is 4.2D,Outer surface is 5.3D.

In addition, this preform is configured as to bottle, filling water is also measured the residual quantity of hydrogen peroxide, knotFruit is 0.012ppm.

< embodiment 2 >

Below, embodiments of the present invention 2 are described.

Preform as sterilization object of the present invention is identical with the situation of embodiment 1.

In addition, the device that this preform 1 is carried out to sterilization also with the situation structure in the same manner of embodiment 1Become. The preform 1 that is attached with the mist M of hydrogen peroxide in above-mentioned chamber 5 utilizes conveyer belt 4 to be transported toTun, and drop in tun. Tun enters after the preform 1 that drops into ormal weightThe airtight keeping of row, and be transported to the factory that is configured as bottle. Even during this keeping, transporting, preformationThe hydrogen peroxide that parison 1 is also closed in tun together with preform 1 carries out sterilization.

Above-mentioned tun is transported to other factory, unpacks, the preformed of taking out from tunBase 1 becomes aseptic packaging body (with reference to Fig. 6 (F)) after implementing following such processing.

As shown in Figure 4, passed through bag by the further sterilization of the preform 1 of hydrogen peroxide sterilizationThe surfaces externally and internally spraying water that contains the preform entirety of the oral area 1a of preform 1 is made roughlyThe atmospheric superheated vapor S of 200 DEG C～500 DEG C and carrying out.

The temperature of the superheated vapor to preform spraying is preferably 200 DEG C～500 DEG C, more preferably250 DEG C～400 DEG C. The temperature range of 200 DEG C if～500 DEG C, by only cruelly surperficial by preformBe exposed in high temperature, just can carry out sterilization to the bacterium that is attached to preform surface at short notice. If cross200 DEG C of the temperature less thaies of heat steam S, for sterilization needs spraying for a long time, formation preformPET itself becomes high temperature, and it is large that the distortion of preform becomes. In addition, if exceed 500 DEG C, even in short-termIn, the temperature that forms the PET of preform itself also rises, and is easy to produce and become in preformShape.

The pressure of the superheated vapor to preform spraying is the pressure higher than atmospheric pressure, preferably than 0.1MPaHigh and not enough 0.3MPa. If near 0.1MPa, though superheated vapor contact with preform andTemperature reduces, and the possibility of dewfall is also lower, if pressure ratio 0.3MPa pressure is high, preform is sprayedWhen mist heating steam, may be at preform surface sweating. If generation dewfall, enters bottle etc. afterwardsWhen row blow molding, may produce albefaction etc. in bottle surface.

In addition, in the sterilization of preform, be necessary for preform inner surface, but for appearanceFace, also can be undertaken by the heating for carrying out blow molding described later, or also can be by blowingBe moulded additional sterilization process of wishing after shape and carry out.

Above-mentioned superheated vapor S can be by using commercially available superheated vapor generation device 13 to obtain. Specifically, can use the superheated vapor generation device of the trade name UPSS of Tokuden Co., Ltd. system.This device is not shown, to being inserted by the spiral central authorities that are wound into the ventilating water pipe that spiral helicine electric conductor formsDielectric heating coil, imports water in ventilating water pipe, and dielectric heating coil is applied to alternating voltage. AlsoCan utilize inverter alternating voltage is carried out to frequency inverted and switch on. By applying of alternating voltage,Dielectric heating coil produces alternating flux, and in ventilating water pipe, flows through induced-current, ventilating water pipe heating.By the heating of this ventilating water pipe, flow through water in ventilating water pipe heated and become saturated vapor, and thenBecome superheated vapor S, and be taken out to outside ventilating water pipe.

In addition, be set to the pipe of electric conductivity by dielectric heating coil, and water flowing in pipe, also canFurther improve heating effect.

As superheated vapor S, can obtain the high and not enough 0.3MPa of pressure ratio 0.1MPa, temperature isThe superheated vapor S of 200 DEG C～500 DEG C. By adopting above-mentioned dielectric heating mode, can start apart from energisingIn the shorter time, water is made to 200 DEG C of above superheated vapors.

In Fig. 4, symbol 14 represents tubular nozzle. This tubular nozzle 14 with from superheated vapor produce dressPut the mode that the front end of the conduit 15 that the terminal of 13 ventilating water pipe connects hangs down and install, its opening 14aTowards vertical lower.

Preform 1 will make the circle of tubular nozzle 14 under its oral area 1a erectility upwardUnder opening 14a, transport to a direction. Method of shipment can be also to make preform 1 continuous movingContinuous method of shipment, can be also the intermittence temporarily stopping under the opening 14a of tubular nozzle 14Method of shipment. Preform 1 can be undertaken by utilizing not shown clamper to clamp its support ring 3Transport.

In addition, in Fig. 4, symbol 16 represents slot-shaped nozzle. This slot-shaped nozzle 16 with from above-mentionedThe front end of the branched pipe 15a of conduit 15 branches connects and the side of its gap 16a and preform 1 stands facing each otherMode configure. Preferred slot-shaped nozzle 16 is in pairs and from the mode subtend of its side clamping preform 1Configuration, in addition, preform 1 is transporting in its axle core rotation. Also can not rotate pre-Become parison 1 and transport, but in this case, slot-shaped nozzle 16 configures multipair.

In illustrated example, be slot-shaped nozzle, but also can be by round nozzle and pre-as above-mentioned tubular nozzleBecome side or the configuration of bottom surface subtend of parison 1.

In the time carrying out the sterilization of preform 1, always from superheated vapor generation device 13 to tubular nozzle 14And slot-shaped nozzle 16 supplies with superheated vapor S, and from the circular open 14a of tubular nozzle 14 and slot-shapedThe gap 16a of nozzle 16 sprays to preform 1. The axles of nozzle footpath, angle, preform etc. are for appointingMeaning, and the mode contacting with the superheated vapor S of above-mentioned ejection and the whole inner surface of preform 1 is in advanceSet.

Thus, the superheated vapor S spraying from the opening 14a of tubular nozzle 7 is from the oral area of preform 11a enters in preform 1, contacts with the whole inner surface of preform 1, and to being attached to preformedThe general bacterium of the inner surface of base 1, mould, saccharomycete carry out sterilization. In addition, this sterilization can byThe inside of preform is blown into the superheated vapor S of short time and realizes, and therefore, prevents from preform 1The superheated of inner side of oral area 1a, therefore, avoid reliably the distortion of the oral area 1a of base 1.

In addition, from the superheated vapor S of the gap 16a ejection of slot-shaped nozzle 16 with comprise taking axle core asThe whole outer surface contact of the oral area 1a of the preform 1 that the heart is rotated and carry out pasteurization. Thus,To being attached to the general bacterium of preform 1 outer surface, mould, saccharomycete carries out sterilization. In addition, this killsBacterium can be realized by the superheated vapor S of from the outer surface spraying short time to preform 1, therefore,Prevent the superheated from the outside of the oral area 1a of preform 1, therefore, avoid reliably base 1The distortion of oral area 1a.

The preform sterilizing unit that above-mentioned superheated vapor S carries out be assembled in shown in Fig. 5～Fig. 7 in linear systemIn system, thus, carry out a large amount of productions of aseptic packaging body.

In this on-line system, preform 1 transports continuously with the speed of hope, and via Fig. 5 and Fig. 6Shown each operation and become aseptic packaging body.

First,, as shown in Fig. 5 (A), preform 1 is in transporting with erectility, with oneConstant speed degree is by the position that arranges of tubular nozzle 7 and slot-shaped nozzle 9. In the time that this passes through, as above-mentioned,In from oral area 1a to preform 1, be blown into superheated vapor S, and the outer surface of preform 1 was sprayedHeat steam S, makes the entirety of preform 1 surfaces externally and internally that comprises preform 1 surfaces externally and internally in the short timeInterior sterilization.

In illustrated example, in the time of the spraying of superheated vapor S, preform 1 becomes erectility, but also canTo be handstand state.

Due to sterilization at short notice, therefore, the oral area 1a of preform 1 can not be out of shape, or can mistakeThe resin of degree heating preform 1. In addition, steam condensing water can be at the surface sweating of preform 1And residual, therefore, not can after blow molding in form albefaction etc. on the bottle 12 manufactured.

In addition, the surfaces externally and internally of preform 1 is by tubular nozzle 14 and the slot-shaped nozzle 16 of mutually staggeringPosition is set, also can stagger and carry out temporally sterilization.

As shown in Fig. 5 (B), heater 17 configures wall-forming shape along the road of transporting of preform 1, and utilizing shouldHeater 17, preform 1 is heating in mobile. Preform 1 passes through this heating from approximately 90 DEG CBe heated to equably approximately 130 DEG C of degree, and become the heated condition that is suitable for blow molding.

In the time of heating, preform 1 passes through insert spindle 18 and hang with erectility to its oral area 1a,And utilize heater 17 to heat equably by rotating together with spindle 18.

Become the preform of the state of temperature that is suitable for blow molding 1 according to Fig. 5 (C) like that by heatingImplement blow molding, and be configured as the bottle 12 as container.

Mould 19 as blow molding mould connects in the speed with identical with the translational speed of preform 1When continuous property ground is mobile, become matched moulds state, in mould 19, carry out being blow molded into preform 1After shape, become die opening state.

Preform 1 is roughly heating equably in the heating process shown in Fig. 5 (B), makes the temperature of its entiretyDegree rises into the temperature field that is suitable for shaping, under this heated condition, as shown in Fig. 5 (C), with spindle 18 1Rise and be installed in mould 19. In addition, blow nozzle 20 connects the top of mould 19 and preform 1Spindle 18 in oral area 1a also inserts in preform 1.

During mould 19 moves, by for example blowing successively in preform 1 from blow nozzle 20Enter air for blowing, secondary blowing air etc., preform 1 is swollen in the die cavity C of mould 19The swollen bottle 12 to final formed products.

Like this, when bottle 12 is during at mould 19 internal shaping, mould 19 die sinking in mobile, as figureShown in 6 (D), the finished product of bottle 12 is taken out to outside mould 19.

Bottle 12 after shaping also in continuous moving, according to shown in Fig. 6 (E) like that from filling nozzle21 is all as the mineral water of content, tea beverage, milk beverage, soda etc. to the interior filling of bottle 12Beverage a, as shown in Fig. 6 (F), utilize as lid lid 22 seal.

In addition, also can be after above-mentioned blow molding, by the steam spray that comprises the bactericide such as hydrogen peroxideMist, electron beam irradiation etc. carry out the outer surface sterilization of bottle 12 to bottle 12, thus, improve sterilization effectReally. At the mist that utilizes hydrogen peroxide, the inner surface of bottle is carried out, sterilization, need to reducing as far as possibleThe concentration of hydrogen peroxide, to reduce the residual of hydrogen peroxide in bottle.

Like this, the bottle 12 that becomes package body is accumulated and sent to market.

Form as shown in Figure 7 according to example for the aseptic device for filling of implementing above-mentioned on-line system.

As shown in Figure 7, this aseptic device for filling possesses: interval is supplied with successively and had oral area 1a according to the rulesPreform supplying machine 23, the blow molding of the preform that has bottom tube-like 1 (with reference to Fig. 4, Fig. 5 (A))Machine 24, to the filling machine 25 of the bottle 12 fillings sealings beverage a that are shaped.

Preform supplying machine 23 takes out one by one from the packaging tun that is accommodated with above-mentioned preform 1 in advanceBecome parison 1 and chat face to face downwards and state first transport road and send. Said conveyer belt 4 is being arranged at and this nothingIn situation in the identical factory of bacterium device for filling, also can be by conveyer belt 4 and preform supplying machine 23Directly link.

From preform supplying machine 23 to filling machine 25 arrange: transport road first and transport in advanceBecome the conveyer for preform of parison 1, second transporting on road of transporting with above-mentioned first that road is connectedTransport the mould of mould 19 (with reference to Fig. 5 (C)) of the die cavity C of the finished form with bottle 12 with transporting dressPut, the 3rd transport and on road, transport the bottle 12 being shaped by mould 19 what transport with above-mentioned second that road is connectedBottle conveyer.

Preform transports second of road, mould conveyer with first of conveyer and transports road and bottleSon transports road with the 3rd of conveyer and is interconnected, and transports on road and be provided with and keeping preformed at theseWhen base 1 and bottle 12, the not shown fixture transporting etc.

Preform first transports the interval that possesses on road to specify and supplies with successively preformation at it with conveyerThe preform conveyer belt 26 of parison 1. In addition, possess and receive pre-from the terminal of preform conveyer belt 26Become the row of the wheel 27,28,29,30 that transports of parison 1 and receive preform 1 from wheel 30The conveyer belt 31 moving.

The preform conveyer belt 26 of preform supplying machine 23 at the position than being connected with wheel 27 a littleThe tubular nozzle 14 from superheated vapor S to preform 1 and the slot-shaped nozzle 16 that spray are set by upstream side.The preform 1 superheated vapor S (with reference to Fig. 4, Fig. 5 (A)) that sprays from from these nozzles 14,16 to heating.Thus, by the surfaces externally and internally of preform 1 pasteurization equably.

These nozzles 14,16 also can be arranged at preform 1 and arrive conveyer belt 31 for example wheel beforeThe assigned address of son 30 peripheries.

Conveyer belt 31 has the annular that along continuous straight runs stretches more longways and transports chain, transports along this annularChain arranges heating part 31a. Transport on chain, with a determining deviation, the ingot shown in multiple Fig. 5 (B) is installed in annularSon 18. Each spindle 18 can carry out rotation in moving together with movement that annular is transported chain. FromWheel 30 sides are delivered in the preform 1 of conveyer belt 31, as shown in Fig. 5 (B), insert from its oral area 1aSpindle 18, and spindle 18 is kept with erectility.

Preform 1 receives defeated via the row of preform conveyer belt 26, wheel 27,28,29,30Send and be with 31, and it is mobile to utilize this conveyer belt 31 to come and go in the 31a of heating part. Heating part 31a'sOn internal face, be covered with heater 17 (with reference to Fig. 5 (B)), the preform 1 being transported by conveyer belt 31 is added by thisHot device 17 heats. During preform 1 is mobile on conveyer belt 31, carry out along with the rotation of spindle 18 certainlyTurn, and utilize heater 17 to heat equably.

Blow-moulding machine 24 possesses many group receptions and is added by the heating part 31a of above-mentioned preform supplying machine 23Heat preform 1 and to bottle 12 heat be shaped mould 19 and blow nozzle 20 (with reference to scheme5(C))。

Above-mentioned mould transports road with second of conveyer and communicates with in blow-moulding machine 24. This second transportsThe row of route wheel 32,33,34,29,35 form. In addition, this wheel 32,33,34,29,35 row and above-mentioned preform are with sharing wheel between the row of the wheel 27,28,29,30 of conveyer29。

Mould 19 and blow nozzle 20 configure multiple around wheel 33, together with wheel 33 rotation andAround wheel 33 with certain speed cycle.

The not shown fixture reception of wheel 32 is heated by the heating part 31a of preform supplying machine 23Preform 1 and spindle 18, and in the time being sent to mould 19 around of wheel 33, a half mold 19Close, and clamp preform 1 as Fig. 5 (C). Preform 1 in mould 19 is around wheel33 cycles together with mould 19 and blow nozzle 20, utilize blow molding to use from blow nozzle 20 togetherPressure-air carries out blowing, thus, is configured as the finished product of bottle 12. As shown in Fig. 5 (B), preform1 utilizes above-mentioned heater 17 to be heated to equably the temperature specifying, therefore, and blow molding swimmingly.

In the time connecting airtight and form bottle 12 in the die cavity C of preform 1 and mould 19, this mould 19Join with wheel 34, result, carries out die sinking, and discharges bottle 12 and spindle 18. And, utilize wheelThe not shown fixture of son 34 receives bottle 12 from spindle 18.

On the other hand, the spindle 18 that discharges bottle 12 is back to said conveyer belt 31 via wheel 32, andKeep transporting in order other preform 1.

Bottle 12 utilizations of sending and arrive wheel 34 from blow-moulding machine 24 are disposed at wheel 34 peripheriesTesting fixture 36 cob webbing etc. is checked.

Testing fixture 36 possesses: the good no bottle trunk inspection dress of trunk of not shown differentiation bottle 12Put, differentiate good no support ring testing fixture, the differentiation bottle of the support ring 3 (with reference to Fig. 1) of bottle 12The good no bottle neck end face testing fixture of 12 neck end face, the good no bottle in bottom of differentiation bottle 12Son bottom testing fixture.

Bottle trunk testing fixture, support ring testing fixture and bottle neck end face testing fixture are with along wheelThe mode of son 34 peripheries configures.

Bottle trunk testing fixture, support ring testing fixture, the utilization of bottle neck end face testing fixture are not schemedEach lamp showing and the regulation position of camera bottle 12, utilize image processing apparatus to process,To whether having extremely and differentiate about shape, flaw, foreign matter, variable color etc.

In addition, testing fixture 36 arranges as required. In addition, bottle trunk testing fixture, supportingRing testing fixture and bottle neck end face testing fixture are accepted or rejected selection as required.

The bottle 12 checking, in underproof situation, is got rid of from transporting road by not shown repulsion device,Only certified products are transported to wheel 35 from wheel 34 via wheel 29.

In addition, also can comprise the bactericide such as hydrogen peroxide to bottle 12 after above-mentioned blow moldingVapor spray, electron beam irradiation etc. and the outer surface sterilization of additional bottle, or improve killing of bottle inner surfaceBacterium effect. Vapor spray device or electronics containing bactericide for example also can be set on wheel 29 or 35The sterilizing unit that beam irradiation apparatus is such.

Filling machine 25 has the 3rd of above-mentioned bottle conveyer therein and transports road. The 3rd transportsRoad has the row of wheel 37,38,39,40,41,42.

In filling machine 25, be provided for to the sizer 43 of bottle 12 filling beverage a, and be provided forThe capping machine 44 sealing to bottle 12 mounting covers 22 (with reference to Fig. 6 (F)) that are filled with beverage a.

In addition, sizer 43 and capping machine 44 also can be the same with known device, therefore, omit and sayBright.

In addition, this device for filling is surrounded by chamber 45, is spaced into aseptic area and centre in chamber 45(グレー) region. And preform supplying machine 23 and blow-moulding machine 24 are disposed at mesozoneTerritory, filling machine 25 is disposed at aseptic area.

In zone line, be always blown into the air that is carried out asepticize by HEPA, thus, in the time being shaped, killThe bottle 12 of bacterium can not carried out secondary pollution and be transported to aseptic area by microorganism.

In addition, than the above-mentioned chamber 5 of said conveyer belt 4 more downstream and preform supplying machine 23 connectIn situation about connecing, by the preform 1 of hydrogen peroxide sterilization further by superheated vapor S sterilization, afterwardsImplement blow molding, be configured as bottle 12 containers such as grade. In addition, fill at blow-moulding machine 24 and beverage etc.Fill out in the situation that machine 25 connects, seal to filling beverage a in bottle 12, and as aseptic fillingPackage is discharged.

Then, by the aseptic filling dress shown in the preform sterilizing unit shown in Fig. 2 and Fig. 3 and Fig. 7The effect of putting illustrates together with the method for disinfection of preform.

In addition, in the chamber 37 of above-mentioned aseptic device for filling, carry out too sterilization processing.

By the operation of preform forming machine, the conveyer belt 4 that preform 1 input of shaping movesUpstream side. The preform 1 giving off from preform forming machine is stopped by the upstream portion of conveyer belt 4,As shown in Figure 2, on conveyer belt 4, become irregular accumbency state.

Preform 1 on conveyer belt 4 enters in chamber 5 together with conveyer belt 4, is sprayed by spray nozzle 10Be coated with hydrogen peroxide.

The mist of hydrogen peroxide traverses the direction ejection of conveyer belt 4 in chamber 5 from 4 liang of side direction of conveyer belt, anotherOutward, preform 1 can roll because vibration waits on conveyer belt 4, and therefore, hydrogen peroxide is evenBe attached to the outer surface of preform 1.

The mist of the hydrogen peroxide spraying from spray nozzle 10 is full of circulation in chamber 5, and therefore, this mist is also at streamMoving time, be attached to equably the surface of preform 1. Thus, the whole surface of preform 1By hydrogen peroxide sterilization equably.

Preform 1, in the mist of spraying hydrogen peroxide, passes through chamber 5, and throws together with conveyer belt 4Enter in the tuns such as container.

This tun is transported to the factory that is provided with aseptic device for filling, breaks a seal, and will accommodateThe preform of thing moves preform supplying machine 23.

And, utilize preform supplying machine 23 on preform conveyer belt 26 with a row proper alignmentState is carried preform 1, and then utilizes the row of wheel 27,28,29,30 to be transported to heating part 31a.

Entering before the 31a of heating part, the interior appearance from the nozzle 14,16 shown in Fig. 4 to preform 1Face spraying superheated vapor S (with reference to Fig. 5 (A)). Thus, the whole surface of preform 1 is by sterilization.

In the 31a of heating part, preform 1 is in being transported by conveyer belt 31, and bulk temperature is evenBe heated to be suitable for be shaped temperature field (with reference to Fig. 5 (B)).

The preform 1 being heated by heating part 31a is surrounded folder by mould 19 when by wheel 33 peripheryHold, by the one-tenth that expand into bottle 12 in die cavity C that is blown into of the pressure-air from blow nozzle 20Product (with reference to Fig. 5 (C)).

The bottle 12 (with reference to Fig. 6 (D)) being shaped is fetched into mould by the fixture of wheel 34 after mould 19 die sinkingsOutside tool 19, and utilize testing fixture 36 to having or not cob webbing etc. to check.

Then, bottle 12 is in being sent to the row of wheel 38,39,40,41,42, in fillingThe interior movement of machine 25.

In filling machine 25, as Fig. 6 (E), utilize the filling nozzle 21 of sizer 43 to fill to bottle 12Fill out the beverage a of sterilization treatment. Utilize capping machine 44 to cover to the oral area 1a of the bottle 12 that is filled with beverage aThe lid 22 that lid sterilization treatment completes seals (with reference to Fig. 6 (F)), and discharges from the outlet of chamber 45.

As above-mentioned, sizer 43 and capping machine 44 are known device, therefore, omit beverage to bottleThe explanation of the encapsulating method of 12 placement method and bottle 12.

Embodiment 2

35% hydrogen peroxide and forced air are supplied in two-fluid sprayer, in the mist generating, mix60 DEG C add hot-air, and the mist that in from nozzle to chamber, ejection is made up of hydrogen peroxide. Chamber is widthConveyer belt and the length of 600mm are set to 1.5m. On conveyer belt with 860/minute feeding capacities500mL bottle preform, conveyer belt turns round with the speed of 0.2m/ second. Now, every 1 pre-Become the adhesion amount of the hydrogen peroxide of parison to be about 50mg. In addition, supply with 2L bottle with pre-with 250/minuteBecome parison, and carry out same operation. Now, the hydrogen peroxide adhesion amount of every 1 preform is about150mg. Further this preform is carried out to following operation.

Added by the superheated vapor generation device according to dielectric heating mode from the nozzle ejection of internal diameter 8mm φHot water and the superheated vapor of flow 0.7g/ second of producing, and with 300 DEG C of each interior tables to preform of temperatureFace spraying 5 seconds.

The Bacteria Indicators that this bactericidal effect is planted bacterium with the preform inner surface initial is evaluated, result,As shown in table 1, confirming can all beverage of correspondence.

[table 1]

	B.sub.	A.nig.
			500mL uses	3.1D	6.0D more than
2L uses	3.0D	6.0D more than

In addition, in table 1, " B.sub. " is the abbreviation of bacillus subtilis (Bacillussubtilis), " A.nig. "For the abbreviation of black-koji mould (Aspergillusniger). " D " is for representing the D value of bactericidal effect.

In addition, measure the deflection of preform oral area internal diameter, as shown in table 2, maintaining the sealing of lidThe aspect of property is no problem.

[table 2]

	Before spraying superheated vapor	After spraying superheated vapor
			500mL uses	21.77mm	21.75mm
2L uses	21.75mm	21.71mm

Embodiment 3

In the same manner as in Example 1, make hydrogen peroxide be attached to 500ml bottle with on preform, then withVarious ejection temperature within the scope of 180 DEG C～550 DEG C, show in preform from the nozzle of internal diameter 8mm φThe utilization of the face spraying various times of 10 seconds～3 seconds is produced by the superheated vapor generation device of dielectric heating modeThe superheated vapor of flow 0.7g/ second of the water of raw heating.

The bactericidal effect that the spraying of this superheated vapor produces and the distortion of preform internal diameter are as shown in table 3.

[table 3]

Ejection temperature (DEG C)	The ejection time (second)	Bactericidal effect	Distortion
				180	10	×	×
250	6	○	○
				350	4	○	○
450	3	○	○
				550	3	○	×

But, in table 3, about bactericidal effect, by the D value with respect to Bacillussubtilis be 6 withUpper, and with respect to the D value of Aspergillusniger be also more than 6 situation be set to "○" (can), will removeSituation beyond this be set to "×" (can not). About distortion, by the deficient change of preform internal diameterThe situation of 0.05mm be set to "○" (can), situation be in addition set to "×" (can not).

< embodiment 3 >

Below, embodiments of the present invention 3 are described.

This preform 1 is carried out to the device of sterilization as Fig. 8 and Fig. 9 formation.

In Fig. 8 and Fig. 9, symbol 4 representative ring belt conveyors. In being represented by arrow of this conveyer belt 4The upstream side configuration preform forming machine (not shown) of moving direction. Give off from preform forming machineThe preform 1 that completes of shaping hinder by uses such as not shown hoppers at the upstream portion of conveyer belt 4Block. As shown in Figure 8, the preform 1 of shaping becomes accumbency with irregular direction on conveyer belt 4State loads.

The pars intermedia of conveyer belt 4 can move horizontally, at this pars intermedia with series connection configuration first and theTwo chamber 5a, 6a, and be transferred be respectively with 4 cover into hood-like.

As shown in Fig. 8 and Fig. 9, the first chamber 5a has: to join from the mode of sandwich conveyer belt 4The front and rear wall 48,49 of the two side 47 of putting, the front and back end that is disposed at two side 47, cover two side 47And the roof 50 of front and rear wall 48,49 upsides.

The direction ejection of traversing conveyer belt 4 from the lateral margin side direction of conveyer belt 4 is installed respectively on two side 47Add the nozzle 51 for preheating of hot-air H. Preheating also can respectively install one with nozzle 51 on two side 47Individual, but preferably multiple towards the each arrangement of moving direction of conveyer belt 4 on two side 47.

In addition, as nozzle 51 for preheating, also can there is circular open, also can have slot-shapedOpening.

When supplying with the aseptic hot-air H that adds from each preheating with the upstream of nozzle 51, and this add hot-air H fromEach preheating with the front end of nozzle 51 to spraying in the first chamber 5a and sparging the preformed on conveyer belt 4, by adding the surface of hot preheating preform 1 of hot-air H when on base 1 the surface.

Temperature when this adds hot-air H and sprays from preheating nozzle 51 is preferably 80 DEG C～130 DEG C, by addingThe temperature on preform 1 surface of hot-air preheating is preferably 40 DEG C～70 DEG C. If lower than 40 DEG C, notThe temperature of the superheated vapor S spraying after can reducing etc., if higher than 70 DEG C, may be to preform1 oral area 1a causes distortion.

In addition, the direction spray that adds hot-air H traverse conveyer belt 4 from 4 liang of side direction of conveyer belt in chamber 5aGo out, preform 1 on conveyer belt 4 due to vibration wait and can roll, therefore, add hot-air H withDoes not omit and contact equably on the surface of preform 1. Meanwhile, add hot-air also from becoming horizontal pre-Become the oral area 1a of parison 1 to flow in preform 1, and contact equably with the inner surface of preform 1.In addition, the hot-air H that adds spraying with nozzle 51 from preheating is full of circulation in the first chamber 5a, therefore,This preheating is also attached on the surface of preform 1 equably with the air-flow of air H. Thus, preformedThe appropriate preheating of whole surperficial heated air H of base 1.

On the front and rear wall 48,49 of above-mentioned the first chamber 5a, form opening 48a, 49a, make conveyer belt 4Can pass through with the preform 1 being loaded on conveyer belt 4. In addition, exhaust passage 52 and roof 50Link. Inhale by the driving of not shown pressure fan to the hot-air H that adds spraying in above-mentioned the first chamber 5aDraw in exhaust passage 52, and be expelled to outside the first chamber 5a.

As shown in Figure 10 (A), the generating unit that adds hot-air H possesses pressure fan 53, sterilizing filter 54 andElectric heater 55. Entering from pressure fan 53, gas is by sterilizing filter 54 degerming, and utilizes electric heater 55Be heated to set point of temperature, become afterwards aseptic adding hot-air H and be delivered to each preheating nozzle from pipe arrangement51。

In addition, also can be by adding the air of carrying to sterilizing filter 54 from pressure fan 53The steam of heat, and preheat this air, and carry out humidification, and improve export from electric heater 55 asepticThe thermal capacity that adds hot-air H. In addition, sterilizing filter 54 also can filter with prefilter and ULPADevice series connection links. By prefilter is set, can extend the life-span of ulpa filter.

As shown in Fig. 8 and Fig. 9, the second chamber 6a is from downstream and the first chamber 5a neighbour of conveyer belt 4Connect.

This second chamber 6a is also the same with the first chamber 5a, has: the mode with clamping conveyer belts 4 is joinedThe front and rear wall 57,58 of the two side 56 of putting, the front and back end that is disposed at two side 56, cover two side 56And the roof 59 of the upside of front and rear wall 57,58.

The direction ejection of traversing conveyer belt 4 from the lateral margin side direction of conveyer belt 4 is installed respectively on two side 56The nozzle 60 for sterilization of superheated vapor S. Sterilization also can be mounted to two side 56 one by one with nozzle 60,But preferably multiple towards the each arrangement of the moving direction of conveyer belt 4 in two side 56.

In addition, as nozzle 60 for sterilization, also can there is circular opening, also can have slot-shapedOpening.

Supply with superheated vapor S from each sterilization with the upstream of nozzle 60, superheated vapor S is from each sterilization nozzle60 front end sprays in the second chamber 6a.

Superheated vapor S serve as reasons mixed hydrogen peroxide water make hydrogen peroxide and water mix gaseous mixtureBody. In the time that this superheated vapor S sparges preform 1 on conveyer belt 4 surperficial, by overheated steamingThe heat of gas S and the bactericidal action of hydrogen peroxide, the surface of the preform 1 of above-mentioned preheating is by sterilization.

The temperature of the superheated vapor S that preform 1 is sprayed is preferably 150 DEG C～500 DEG C, more preferably250 DEG C～400 DEG C. If the temperature range of 150 DEG C～500 DEG C is passed through only by the table of preform 1Face is exposed in high temperature, just can carry out sterilization to the bacterium that is attached to preform 1 surface at short notice.If 150 DEG C of the temperature less thaies of superheated vapor S,, for sterilization needs spraying for a long time, form preformedThe PET of base itself becomes high temperature, and it is large that the distortion of preform 1 becomes. In addition, if exceed 500 DEG C, beMake at short notice, the temperature that forms the PET of preform 1 itself also rises, and is easy in preformedBase 1 produces distortion.

The pressure of the superheated vapor S that preform 1 is sprayed is the pressure higher than atmospheric pressure, preferably thanHigh and the not enough 0.3MPa of 0.1MPa. If near 0.1MPa, even superheated vapor S and preformedBase 1 contacts and temperature reduction, and the possibility of dewfall is also lower, if pressure ratio 0.3MPa pressure is high, rightWhen preform 1 is sprayed heating steam S, may be at preform 1 surface sweating. If generation dewfall,While bottle etc. being carried out to blow molding, may produce albefaction etc. on bottle 2 surfaces.

In addition, to preform 1 spray time of superheated vapor S be preferably 1.0 seconds～10.0 seconds. If noFoot 1.0 seconds, is easy to produce sterilization bad, if exceed 10.0 seconds, is easy to the mouth at preform 1The 1a of portion produces distortion. The spray time of this superheated vapor S as described above, in advance to preform 1Preheating is carried out on surface, therefore, compared with not carrying out the situation of preheating, can improve by having mixed peroxidatingThe sterilizing power on the preform surface that the superheated vapor S that the water of hydrogen forms produces.

The preferred concentration of hydrogen peroxide that is mixed in water is 0.5%～15%. If less than 0.5%, to brood cellThe sterilizing power of bacterium is insufficient, if larger than 15%, the residual change of hydrogen peroxide is many.

Superheated vapor S traverses the direction ejection of conveyer belt 4 in the second chamber 6a from 4 liang of side direction of conveyer belt,Preform 1 can roll because vibration waits on conveyer belt 4, and therefore, superheated vapor S does not loseLeak and contact equably or be attached on the surface of preform 1. Meanwhile, superheated vapor S is also from becoming horizontalTo the oral area 1a of preform 1 flow in preform 1, and contact equably or be attached to preformedThe inner surface of base 1. In addition, the superheated vapor S spraying with nozzle 20 from sterilization is in the second chamber 6aBe full of circulation, therefore, the air-flow of this superheated vapor S also contacts or is attached to preform 1 equablySurface. Thus, the whole surface of preform 1 is by superheated vapor S and the mistake that is contained in superheated vapor SThe appropriate sterilization of gas of hydrogen oxide.

On the front and rear wall 57,58 of above-mentioned the second chamber 6a, form opening 57a, 58a, make conveyer belt 4Can pass through with the preform 1 loading on conveyer belt 4. In addition, exhaust passage 61 and roof 59Link. Inhale by the driving of not shown pressure fan to the superheated vapor S spraying in above-mentioned the second chamber 6aDraw in exhaust passage 61, and be expelled to outside the second chamber 6a. Above-mentioned superheated vapor S can be by makingObtain with the commercially available superheated vapor generation device 62 shown in Figure 10 (B). Particularly, can useThe superheated vapor generation device of the trade name UPSS of Tokuden Co., Ltd. system. This device is not shown, toInsert dielectric heating coil by the spiral central authorities that are wound into the ventilating water pipe that spiral helicine electric conductor forms, willThe water that has mixed hydrogen peroxide imports in ventilating water pipe, and dielectric heating coil is applied to alternating voltage. AlsoCan utilize inverter alternating voltage is carried out to frequency inverted and switch on. By applying of alternating voltage,Dielectric heating coil produces alternating flux, and in ventilating water pipe, flows through induced-current, ventilating water pipe heating.By the heating of this ventilating water pipe, flow through water in ventilating water pipe heated and become saturated vapor, and thenBecome superheated vapor S, and be taken out to outside ventilating water pipe.

In addition, also can dielectric heating coil be set to the pipe of electric conductivity, by water flowing in this pipeFurther improve heating effect.

As superheated vapor S, according to above-mentioned superheated vapor generation device 62, can obtain pressure is 0.1MPaDegree and temperature are the superheated vapor of 150 DEG C～500 DEG C. By adopting above-mentioned dielectric heating mode, Ke YiWithin the shorter time of energising beginning, the water that has mixed hydrogen peroxide is made to 150 DEG C of above superheated vaporsS. Particularly, superheated vapor S is the mist that is mixed with the high temperature of water and hydrogen peroxide. This is overheatedSteam S gets from the front end of the conduit 63 that is connected with the terminal of the ventilating water pipe of superheated vapor generation device 22Go out, and be dispensed to each nozzle 60 for sterilization.

The ratio second chamber 6a of said conveyer belt 4 more stretches to tuns such as not shown containers in downstreamExhibition. In the second chamber 6a, utilized conveyer belt 4 to be transported to greatly by the preform 1 of superheated vapor S sterilizationType container, and drop in tun. Tun carries out close after the preform 1 that drops into ormal weightClose keeping, and be transported to the factory that is configured as bottle. In addition, at the ratio second chamber 6a of conveyer belt 4 moreIn the situation that downstream is connected with blow-moulding machine, the preform 1 of sterilization is implemented to blow molding immediately,Be configured as the containers such as bottle. Situation about being connected with content-filled machines such as beverages at blow-moulding machine in addition,Under, to contents such as filling sealing beverages in the containers such as bottle, and discharge as aseptic filling and packing product.

Starting before the sterilization processing of preform 1, the sprayer that utilizes in advance the medicaments such as hydrogen peroxide is to theOne and the second chamber 5a, 6a in carry out sterilization processing.

By the operation of preform forming machine, the preform 1 of shaping is thrown at mobile conveyer belt 4Upstream side. The preform 1 giving off from preform forming machine stops at the upstream portion of conveyer belt 4Live, as shown in Fig. 8 and Fig. 9, on conveyer belt 4, become irregular accumbency state.

Preform 1 on conveyer belt 4 enters in chamber 5 together with conveyer belt 4, and passes through from preheatingPreheating is carried out in the spraying that adds hot-air H spraying with nozzle 51.

Add hot-air H traverses conveyer belt 4 in the first chamber 5a direction ejection from 4 liang of side direction of conveyer belt,In addition, preform 1 can roll because vibration waits on conveyer belt 4, therefore, adds hot-air HThere is no to omit and be attached to equably the outer surface of preform 1.

Add hot-air H and also flow in preform 1 from the oral area 1a of preform 1, and adhere to equablyIn the inner surface of preform 1.

The hot-air H that adds spraying with nozzle 51 from preheating is full of circulation in the first chamber 5a, therefore,This adds hot-air H in mobile, is attached to equably the surface of preform 1. Thus, preformationThe whole surperficial heated air H preheating equably of parison 1.

Preform 1, when spraying adds hot-air H, passes through the first chamber 5a together with conveyer belt 4,Then drop in the second chamber 6a and enter by the spraying of the superheated vapor S that sprays from sterilization nozzle 60Row sterilization.

Superheated vapor S as be mixed with water and hydrogen peroxide high temperature mist and sparge preformedOn base 1.

Superheated vapor S traverses the direction ejection of conveyer belt 4 in the second chamber 6a from 4 liang of side direction of conveyer belt,In addition, preform 1 can roll because vibration waits on conveyer belt 4, therefore, and superheated vapor SThere is no to omit and contact equably or be attached to the outer surface of preform 1.

Superheated vapor S also flows in preform 1, evenly from the oral area 1a that becomes horizontal preform 1The inner surface that ground contacted or be attached to preform 1 carries out sterilization.

The superheated vapor S spraying with nozzle 60 from sterilization is full of circulation in the second chamber 6a, therefore,This superheated vapor S also, in mobile, contacts or is attached to the surface of preform 1 equably.

Thus, be attached to the general bacterium on preform 1 surface, mould, saccharomycete by superheated vapor S'sHeat and hydrogen peroxide sterilization, be attached to the brood cell bacterium on preform 1 surface by hydrogen peroxide sterilization.

Along with the movement of conveyer belt 4, the preform 1 completing from the sterilization of the second chamber 6a output drops intoIn the tuns such as container. Or be not packaged in container etc., and be transported to blow-moulding machine, fillingMachine, and become aseptic packaging body and discharge.

Embodiment 4

The first chamber 5a and the second chamber 6a be set to respectively width be 1000mm, length be 1500mm,Be highly 200mm. With feeding capacity 500ml bottle preform in 860/point of clockwise chambers, andConveyer belt is turned round with the speed of regulation. In addition, about add hot-air H in the first chamber 5aTemperature and the ejection temperature of superheated vapor S in the second chamber 6a, the concentration of hydrogen peroxide, also asTable 4 is set like that, and obtains the such result of this table.

[table 4]

In addition, in table 4, the abbreviation that " B.sub " is Bacillussubtilis, " A.niger " is AspergillusThe abbreviation of niger. " D " is is not the D value of bactericidal effect.

As can be known from the results of Table 4, in the situation that A.niger spraying is added with to the superheated vapor of hydrogen peroxideUnder, no matter have or not the preheating on the preform surface that adds hot-air generation, can obtain more than 6.0DBactericidal effect. Be added with the superheated vapor of hydrogen peroxide in the case of B.sub being carried out to preheating and spraying,Compared with in the situation of not preheating, even if do not improve the temperature of superheated vapor or do not increase spray amount, all canTo obtain bactericidal effect more than 6.0D.

< embodiment 4 >

Below, embodiments of the present invention 4 are described. The preformation that becomes sterilization object of the present inventionParison is identical with the situation of embodiment 1.

This preform 1 is carried out to the device and the Fig. 8 and the same ground of Fig. 9 that represent embodiment 3 of sterilizationForm.

Different from the situation of embodiment 3, in this embodiment 4, from each sterilization use nozzle 60Trip supply unit is containing the superheated vapor S of hydrogen peroxide, and this superheated vapor S is from each sterilization use nozzle 60End sprays and sparges on the surface of the preform 1 on conveyer belt 4 in the second chamber 6a. By thisThe heat of superheated vapor S, by the surface disinfection of the preform 1 of preheating in the first chamber 5a.

The temperature of the superheated vapor S that preform 1 is sprayed is preferably 200 DEG C～700 DEG C, more preferably250 DEG C～500 DEG C. The temperature range of 200 DEG C if～700 DEG C, passes through only by preform 1 surfaceBe exposed in high temperature, just can carry out sterilization to the bacterium that is attached to preform 1 surface at short notice.If 200 DEG C of the temperature less thaies of superheated vapor S,, for sterilization needs spraying for a long time, form preformedThe PET of base 1 itself becomes high temperature, and it is large that the distortion of preform 1 becomes. In addition, if exceed 700 DEG C,Even at short notice, the temperature that forms the PET of preform 1 itself also rises, and is easy at preformationIn parison 1, produce distortion.

In addition, the pressure of the superheated vapor that preform 1 is sprayed is the pressure higher than atmospheric pressure, preferablyHigh and the not enough 0.3MPa than 0.1MPa. If near 0.1MPa, even superheated vapor S and preformationParison contacts and temperature reduction, and the possibility of dewfall is also lower, if pressure ratio 0.3MPa pressure is high, rightWhen preform 1 is sprayed heating steam S, may be at preform 1 surface sweating. If generation dewfall,While bottle etc. being carried out to blow molding, may produce albefaction etc. on bottle 2 surfaces.

In addition, to preform 1 spray time of superheated vapor S be preferably 1.0 seconds～10.0 seconds. If noFoot 1.0 seconds, is easy to produce sterilization bad, if exceed 10.0 seconds, is easy to the mouth at preform 1The 1a of portion produces distortion. The spray time of this superheated vapor S as described above, in advance to preform 1Preheating is carried out on surface, therefore, compared with not carrying out the situation of preheating, effectively carries out preform 1 and showsThe sterilization that the superheated vapor S of face produces, shortens the spray time of superheated vapor S and completes, as a result of,Save the energy.

In addition, superheated vapor S traverses the side of conveyer belt 4 in the second chamber 6a from 4 liang of side direction of conveyer beltTo ejection, preform 1 can roll because vibration waits on conveyer belt 4, therefore, and superheated vapor SDo not omit and contact equably with the surface of preform 1. Meanwhile, superheated vapor S is also from becoming horizontalThe oral area 1a of preform 1 flow in preform 1, and with the inner surface of preform 1 equablyContact. In addition, the superheated vapor S spraying with nozzle 60 from sterilization is full of circulation in the second chamber 6a,Therefore, the air-flow of this superheated vapor S also with the surface uniform of preform 1 contact. Thus, preformationThe whole surface of parison 1 is by the appropriate sterilization of superheated vapor S.

Superheated vapor S to above-mentioned the second chamber 6 interior ejections attracts by the driving of not shown pressure fanIn exhaust passage 61, and be expelled to outside the second chamber 6a.

Above-mentioned superheated vapor S can be by using the commercially available superheated vapor generation device shown in Figure 10 (B)22 and obtain. Water is imported in ventilating water pipe, and dielectric heating coil is applied to alternating voltage, thus,Heating ventilating water pipe, heats water mobile in ventilating water pipe by the heating of this ventilating water pipe.Thus, the water in ventilating water pipe becomes saturated vapor, and then becomes superheated vapor S, and is taken out to water service pipeOutside road.

As superheated vapor S, according to above-mentioned superheated vapor generation device 62, can obtain pressure is 0.1MPaDegree and temperature are the superheated vapor of 200 DEG C～700 DEG C. By adopting above-mentioned dielectric heating mode, Ke YiWithin the shorter time of energising beginning, water is made to 200 DEG C of above superheated vapor S. This superheated vapor S fromThe front end of the conduit 63 being connected with the terminal of the ventilating water pipe of superheated vapor generation device 62 takes out, and pointBe assigned to each nozzle 60 for sterilization.

The ratio second chamber 6a of said conveyer belt 4 more stretches to tuns such as not shown containers in downstreamExhibition. In the second chamber 6a, utilized conveyer belt 4 to be transported to greatly by the preform 1 of superheated vapor S sterilizationType container, and drop in tun. Tun carries out close after the preform 1 that drops into ormal weightClose keeping, and be transported to the factory that is configured as bottle.

In addition, at the ratio second chamber 6a of conveyer belt 4, more downstream is connected with blow-moulding machine,Preform 1 to sterilization is implemented blow molding immediately, is configured as the containers such as bottle. In addition, in blowingIn the situation that the content-filled machines such as forming machine and beverage are connected, to filling sealing beverage in the containers such as bottleDeng content, and discharge as aseptic filling and packing product.

Embodiment 5

The first chamber 5a and the second chamber 6 be set to respectively width be 1000mm, length be 1500mm,Be highly 200mm. With feeding capacity 500ml bottle preform in 860/point of clockwise chambers, andConveyer belt is turned round with the speed of regulation. In addition, about add hot-air H in the first chamber 5aTemperature and the ejection temperature of superheated vapor S in the second chamber 6, also as table 5, set knotFruit obtains the such result of this table.

[table 5]

In addition, in table 5, the abbreviation that " B.sub " is Bacillussubtilis, " A.niger " is AspergillusThe abbreviation of niger. " D " is for representing the D value of bactericidal effect.

As can be known from the results of Table 5, the in the situation that of preheating preform not, A.niger is 3.0D, butIn the spraying by adding hot-air preheating preform, even if do not improve the temperature of superheated vaporSpend or do not increase spray amount, about A.niger, can obtain bactericidal effect more than 6.0D.

Description of symbols

1 ... preform

1a ... preform oral area

4 ... conveyer belt

5 ... chamber

5a ... the first chamber

6a ... the second chamber

10 ... spray nozzle

51 ... preheating nozzle

60 ... sterilization nozzle

H ... add hot-air

M ... the mist of hydrogen peroxide

S ... superheated vapor

Claims

1. a method for disinfection for preform, is characterized in that, will be formed as the multiple of bottom tube-likePreform is thrown and is put on the belt and be set to irregular accumbency state, makes these preforms and defeatedSend band together by chamber, in chamber, traverse the direction spraying dioxygen of conveyer belt from conveyer belt two side directionWater, makes the hydrogen peroxide of this spraying be attached to the surfaces externally and internally of the preform on conveyer belt.

2. a method for disinfection for preform, is characterized in that, will be formed as the multiple of bottom tube-likePreform is thrown and is put on the belt and be set to irregular accumbency state, makes these preforms and defeatedSend band together by chamber, in chamber, traverse the direction spraying dioxygen of conveyer belt from conveyer belt two side directionWater, makes the hydrogen peroxide of this spraying be attached to the surfaces externally and internally of the preform on conveyer belt, then, and to bagContaining at least inner surface of preform oral area in interior whole surface, the pressure ratio 2 that spraying is made up of waterThe high superheated vapor of atmospheric pressure of 00 DEG C～500 DEG C.

3. the method for disinfection of preform as claimed in claim 1 or 2, is characterized in that, described twoOxygen water conservancy is carried out atomization with the two-fluid spraying that uses forced air.

4. the method for disinfection of preform as claimed in claim 1 or 2, is characterized in that, described twoThe concentration of oxygen water is 20%～35%.

5. the method for disinfection of preform as claimed in claim 3, is characterized in that described hydrogen peroxideConcentration be 20%～35%.

6. the method for disinfection of preform as claimed in claim 3, is characterized in that, at described dioxygenIn the mist of water, mix the hot-air that adds of 40 DEG C～150 DEG C.

7. the method for disinfection of preform as claimed in claim 4, is characterized in that, at described dioxygenIn the mist of water, mix the hot-air that adds of 40 DEG C～150 DEG C.

8. the method for disinfection of preform as claimed in claim 1 or 2, is characterized in that, byThe sterilization that starts preform sprays hydrogen peroxide before in advance in described chamber, to killing in chamberBacterium.

9. the method for disinfection of preform as claimed in claim 3, is characterized in that, by startingBefore the sterilization of preform, in described chamber, spray hydrogen peroxide in advance, to carrying out sterilization in chamber.

10. the method for disinfection of preform as claimed in claim 4, is characterized in that, by startingBefore the sterilization of preform, in described chamber, spray hydrogen peroxide in advance, to carrying out sterilization in chamber.

11. method for disinfection of preform as claimed in claim 6, is characterized in that, by startingBefore the sterilization of preform, in described chamber, spray hydrogen peroxide in advance, to carrying out sterilization in chamber.

12. 1 kinds of sterilizing units, is characterized in that possessing: transport and be formed as with accumbency state loadingThe conveyer belt of the preform of bottom tube-like, be arranged at chamber, the Yi Ji of the portion that moves horizontally of this conveyer beltIn this chamber, traverse the direction spraying hydrogen peroxide of conveyer belt and make hydrogen peroxide attached from described conveyer belt two side directionThe spray nozzle of the surfaces externally and internally of the preform on conveyer belt.

13. 1 kinds of preform sterilizing units, is characterized in that possessing: load and transport with accumbency stateBe formed as the preform of bottom tube-like conveyer belt, be arranged at the chamber of the portion that moves horizontally of this conveyer beltChamber, in this chamber, traverse the direction spraying hydrogen peroxide of conveyer belt and make dioxygen from described conveyer belt two side directionWater is attached to spray nozzle and the superheated vapor of the surfaces externally and internally of the preform on conveyer belt and supplies with dressPut, this superheated vapor feedway receives the preform of being sent outside described chamber by described conveyer belt,And when preform is moved with erectility, to comprising preform oral area on interior whole surfaceIn the high overheated steaming of atmospheric pressure of 200 DEG C～500 DEG C of the pressure ratios made by water of at least inner surface sprayingGas.

The method for disinfection of 14. 1 kinds of preforms, is characterized in that, will be formed as the multiple of bottom tube-likePreform is thrown and is put on the belt and be set to irregular accumbency state, and makes these preformsWhen utilizing conveyer belt to pass through in the first chamber, from conveyer belt both sides to preform spraying-and-heating airAnd preheating preform, then in utilizing conveyer belt to make preform pass through in the second chamber, fromThe superheated vapor that conveyer belt two side direction preforms sprayings utilize the water that has mixed hydrogen peroxide to make, in advanceBecome parison to carry out sterilization.

The method for disinfection of 15. preforms as claimed in claim 14, is characterized in that, by sprayDescribed in painting, add hot-air, preform surface is preheated to 40 DEG C～70 DEG C.

The method for disinfection of 16. preforms as claimed in claim 14, is characterized in that, overheated steamingGas produces by the water that is mixed with hydrogen peroxide is carried out to dielectric heating.

17. 1 kinds of preform sterilizing units, is characterized in that possessing: load and transport with accumbency stateBe formed as the conveyer belt of the preform of bottom tube-like, connect with the portion of moving horizontally of this conveyer belt arrangeFirst and second chamber, in the first chamber from conveyer belt two side direction preform spraying-and-heating air and rightThe preheating that preform carries out preheating with nozzle and in the second chamber from conveyer belt two side direction preformedBase sprays the superheated vapor of being made up of the water that is mixed with hydrogen peroxide and preform is carried out to killing of sterilizationBacterium nozzle.

The method for disinfection of 18. 1 kinds of preforms, is characterized in that, will be formed as the multiple of bottom tube-likePreform is thrown and is put on the belt and be set to irregular accumbency state, makes these preform profitsWith conveyer belt by the first chamber time, from conveyer belt both sides to preform spraying-and-heating air,Preform is carried out to preheating, then utilizing conveyer belt to make preform pass through same in the second chamberTime, from conveyer belt two side direction preform spraying superheated vapors, preform is carried out to sterilization.

The method for disinfection of 19. preforms as claimed in claim 18, is characterized in that, by sprayDescribed in painting, add hot-air, preform surface is preheated to 40 DEG C～70 DEG C.

The method for disinfection of 20. preforms as claimed in claim 18, is characterized in that, overheated steamingGas produces by water is carried out to dielectric heating.

21. 1 kinds of preform sterilizing units, is characterized in that possessing: load and transport with accumbency stateBe formed as the conveyer belt of the preform of bottom tube-like, connect with the portion of moving horizontally of this conveyer belt arrangeFirst and second chamber, in the first chamber from conveyer belt two side direction preform spraying-and-heating air and rightThe preheating that preform carries out preheating with nozzle and in the second chamber from conveyer belt two side direction preformedBase spraying superheated vapor and the sterilization nozzle that preform carried out to sterilization.